Critical Ghostscript Vulnerability: Important Security Update for AlmaLinux Packages

ghostscript Updated 15 Oct 2026

Summary

15/10/2026

Disclosed on

N/A

Severity

Yes i

Fix available

Unrated

Severity

Not published

CVSS Score

ALSA-2026:83552: Important: ghostscript security update. Affects ghostscript versions < 9.27-19.el8_10. Fixed in 9.27-19.el8_10. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or Browse

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats

SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml

Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile

Javascript package-lock.json · yarn.lock · pnpm-lock.yaml

PHP composer.lock

Python poetry.lock · requirements.txt · Pipfile.lock

Go go.mod

Rust Cargo.lock

Ruby Gemfile.lock

Dart pubspec.lock

C/C++ conan.lock

Elixir mix.lock

Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Background

Ghostscript is a suite of software that provides utilities for rendering PostScript and PDF documents. It translates PostScript code into common bitmap formats, enabling the display and printing of these documents. The Ghostscript package is widely used in various applications for document processing and is essential for users who work with PostScript and PDF files. However, recent vulnerabilities have been identified that could compromise the security of systems using Ghostscript.

Vulnerability Detail

The Ghostscript suite has been found to contain critical vulnerabilities that could lead to severe security risks. Specifically, a sandbox bypass vulnerability (CVE-2026-101258) allows attackers to exploit Type 5 shading, leading to an out-of-bounds write and a use-after-free condition in the procedure stream. Additionally, a stack-based buffer overflow vulnerability (CVE-2026-103226) exists in the pdfwrite component, which can be triggered by crafted font data. These vulnerabilities can potentially allow unauthorized access to sensitive data or execution of arbitrary code.

How To Fix

Minimum fixed version

9.27-19.el8_10

This is the first release that contains the fix.

sudo dnf update ghostscript

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Workaround

As a temporary measure, users can limit the use of Ghostscript in environments where security is a concern until the update is applied. Additionally, consider disabling features that utilize Type 5 shading or avoid processing untrusted PostScript or PDF files.

Conclusion

The identified vulnerabilities in Ghostscript pose significant security risks that must be addressed promptly. By updating to the latest patched version, users can protect their systems from potential exploits. It is crucial to remain vigilant and monitor for any further vulnerabilities using tools like Vulert.

See every vulnerability recorded for ghostscript →